1,4-Dibenzoylpiperazine 5-23-01-00049 (Beilstein Handbook Reference) 6091-41-4 BRN 0269290 N(sup 1),N(sup 4)-Dibenzoylpiperazine N1,N4-Dibenzoylpiperazine NSC 23580 Piperazine, 1,4-dibenzoyl- n(sup1),n(sup4)-dibenzoylpiperazine